11639806806 has 16 divisors (see below), whose sum is σ = 24649002864. Its totient is φ = 3651704064.

The previous prime is 11639806793. The next prime is 11639806813. The reversal of 11639806806 is 60860893611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57057775 + ... + 57057978.

It is an arithmetic number, because the mean of its divisors is an integer number (1540562679).

Almost surely, 2^11639806806 is an apocalyptic number.

11639806806 is an abundant number, since it is smaller than the sum of its proper divisors (13009196058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11639806806 is a wasteful number, since it uses less digits than its factorization.

11639806806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114115775.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 11639806806 in words is "eleven billion, six hundred thirty-nine million, eight hundred six thousand, eight hundred six".